java - 在 Android 中解析 JSON 字符串

Question

现在我有以下 JSON 字符串:

"{"1":{"from":"540","to":"1020"},"2":{"from":"540","to":"1020"},"3":{"from":"540","to":"1020"},"4":{"from":"540","to":"1020"},"5":{"from":"540","to":"1020"},"6":{"from":"540","to":"1020"},"7":{"from":"540","to":"1020"}}"

我想在 Android Studio 中解析它并迭代所有这些结果:

String day = monday;
int hourstart = from;
int hoursclose = to;

当然 from 和 to 表示数字。有谁知道 JSON 解析器的构造应该是什么样子的？

Answer 1

试试这个:

           //here jsonString is your json in string format

           JSONObject obj3=new JSONObject(jsonString);
           JSONObject obj4=null;
           //Getting all the keys inside json object with keys- from and to
              Iterator<String> keys= obj3.keys();
              while (keys.hasNext()) 
             {
                   String keyValue = (String)keys.next();
                   obj4 = obj3.getJSONObject(keyValue);
                   //getting string values with keys- from and to
                   String from = obj4.getString("from");
                   String to = obj4.getString("to");
                   int hourstart = Integer.parseInt(from);
                   int hoursclose = Integer.parseInt(to);
                   System.out.println("From : "+ hourstart +" To : "+ hoursclose);
             }